Spinatrypina Rzhonsnitskaya, 1964

Ma, Xue-Ping, Becker, Ralph Thomas, Li, Hua & Sun, Yuan-Yuan, 2006, Early and Middle Frasnian brachiopod faunas and turnover on the South China shelf, Acta Palaeontologica Polonica 51 (4), pp. 789-812 : 802-803

publication ID

https://doi.org/ 10.5281/zenodo.13742176

persistent identifier

https://treatment.plazi.org/id/4836037D-D661-6C49-FFBF-D483FD10F925

treatment provided by

Felipe

scientific name

Spinatrypina Rzhonsnitskaya, 1964
status

 

Genus Spinatrypina Rzhonsnitskaya, 1964 View in CoL Spinatrypina douvillei ( Mansuy, 1912)

Fig. 10A, B View Fig .

1912 Atrypa Douvillei View in CoL nov. sp.; Mansuy 1912: 74, pl. 13: 9a–h.

1931 Atrypa douvillii Mansuy ; Grabau 1931: 194–197, pl. 15: 15, pl. 22: 5–10.

1938 Atrypa douvillii Mansuy ; Tien 1938: 95–97, pl. 13: 5–10, 13.

1983 Spinatrypina douvillii (Mansuy) ; Chen 1983: 316, pl. 31: 3–5.

Material.—About 50 poorly preserved shells, valves, and fragments from the Early Frasnian of the Caiziyan section (samples GC 8–9, GC 20, and GC 21–24). Three complete shells from the?Middle Frasnian of the Panxi section (sample PY5).

Discussion.—The specimen of Fig. 10A View Fig is a heavily exfoliated, weakly convex dorsal valve, with about 40–45 ribs (approximately 19.0 mm wide, 16.5 mm long, exact rib number is uncertain), with about 6 ribs per 5 mm near the anterior. Another figured specimen ( Fig. 10B View Fig ) is also a dorsal valve, which is subrounded in outline, slightly convex, with about (5–) 6 ribs per 5 mm at anterior margin (around 30–35 ribs on whole surface; size is about 17.0 mm wide, 13.9 mm long).

The outline, dorsal valve convexity, and nature of ribbing are basically in agreement with Spinatrypina douvillei ( Mansuy, 1912) and material described by subsequent workers from South China (e.g., Chen 1983) [see Grabau (1931: 194) for an English translation of Mansuy’s original French description]. Grabau (1931: 194) changed the name douvillei (to honor M.H. Douvillé by Mansuy 1912) to douvillii without giving any reasons, which has since been followed by subsequent workers, such as Tien (1938), Wang et al. (1964), and Chen (1983).

Occurrence.—Same as the previous species in geographic and stratigraphic distribution. The studied specimens are from the

Caiziyan and Panxi sections ( Fig. 2 View Fig ), correlated with the Palmatolepis transitans Pa. punctata conodont zones.

GC

Goucher College

Kingdom

Animalia

Phylum

Brachiopoda

Class

Rhynchonellata

Order

Atrypida

Family

Atrypidae

Loc

Spinatrypina Rzhonsnitskaya, 1964

Ma, Xue-Ping, Becker, Ralph Thomas, Li, Hua & Sun, Yuan-Yuan 2006
2006
Loc

Spinatrypina douvillii (Mansuy)

Chen, Y. - R. 1983: 316
1983
Loc

Atrypa douvillii

Tien, C. C. 1938: 95
1938
Loc

Atrypa douvillii

Grabau, A. W. 1931: 194
1931
Loc

Atrypa

Mansuy, H. 1912: 74
1912
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